the infrastructure we have created has built itself up in cities and on the coasts. it brought me back to square one and keeping my curiosity on the systems and not just the internet, but power and aviation and the large complicated things that we depend on so much. >> "tubes" is the name of the book. andrew blum is the author. this is "communicators" on c- span. >> sometimes he was a cruel boss. he did not know how to apologize. many of his age and class, they're not going to apologize to a young and private secretary. he had a way of turning the tables. his version of an apology would be to say, well, i am a kind man and you are doing a good job today. but the issue was never settled. he always had to get the